Review: Mammut Smart belay deviceThe Mammut Smart is a single rope belay and rappel device; the Smart Alpine can take two and can belay of the anchor. Assisted locking feature (passive) Rope diameter: 8.9mm Weight: 82kg ...

Can you measure recoil with a smart device?Simple answer, yes, you can measure recoil with a smart device. But it's not an exact measurement. But it can work in comparing recoil of two different guns. * Be sure to join the web's...